Buick 2004 Park Avenue - Manual (Page 264)

How to Check and Add Oil
Park the vehicle on a level surface. Check oil only when
the engine is cold. Allow the engine to cool two to
three hours after running.
{ CAUTION:
If you remove the supercharger oil fill plug
while the engine is hot, pressure may cause
hot oil to blow out of the oil fill hole. You may
be burned. Do not remove the plug until the
engine cools.
1. Clean the area around the oil fill plug before
removing it.
2. Remove the oil fill plug.
3. The oil level is correct when it just reaches the
bottom of the threads of the inspection hole.
4. Replace the oil plug with the O-ring in place.
Tighten to 88 lb-in (10 Y ).
Engine Air Cleaner/Filter
See Engine Compartment Overview on page 5-12 for
the location of the engine air cleaner/filter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter every 15,000 miles
(25 000 km) and replace every 30,000 miles
(50 000 km). If you are driving in dusty/dirty conditions,
inspect the filter at each engine oil change.
5-20